Machine for beating leaf metal.



No. 882,790. PATENTED OCT. 9, 1906; J. HEINRIGH & H. DORSGH.

MACHINE FOR BEATING LEAF METAL.

' APPLIGATION FILED oonmmoa.

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No. 832,790. I PATENTED OCT. 9, 1906. J. HEINRICH & H. DORSGH. MACHINE FOR BEATING LEAP METAL.

APPLIQATION FILED 00T.5. 1903.

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UNITED STATES PATENT OFFICE.

J AKOB HEINRICH AND HEINRICH DORSCH, OF FIIRTH, GERMANY.

MACHINE FOR B EATING LEAF METAL.

Specification of Letters Patent.

Patented Oct. 9, 1906.

Application filed October 5, 1903. Serial No. 175,864.

To all whom it may concern:

Be it known that we, J AKOB HEINRICH and HEINRICH DORSGH, subjects of the King of Bavaria, residing at Fiirth, in the Kingdom of Bavaria, Germany, have invented certain new and useful Improvements in Machines for Beating Leaf Metal, of which the following is a specification.

This invention relates to improvements in machines for beating leaf metal in which piles of leaf-metal sheets, with beater-skin between them, are held fast on the matrix of the machine by a toothed ring or the like, which is rotated and displaced during the beating.

In the annexed drawings, Figures 1 and 3 are diagrams of beating-paths Figs. 2 and 4 are sections of cam-disks for displacing the aforesaid toothed ring. Fig. 5 is a side view of the improved machine with the frame partly in section, and Fig. 6 a plan view thereof.

To accelerate the working and prevent the jumping of the metal edges to a greater degree than hitherto and also to protect the beater-skin, the machine is so constructed that the upper surfaces of the metal-leaf piles are struck by the hammer along paths extending radially from the'center, or approximatelythe center, to the edges of the metal. Some of the said radial paths, or all of them, do not terminate at the edges of the metal, but extend beyond or along it before a fresh path is begun.

Fig. 1 diagrammatically illustrates the method of beating. The part 0 A of the cam-disk shown in Fig. 2 displaces the toothed disk which holds the leaf metal in such a manner that the hammer strikesapproximately along the path 0 a. The part A B thereupon displaces the rotating leaf metal in such a manner that it is beaten along the path a b, near the edge of the metal, until the guide-roller leaves this cam, and the pile is so displaced that the hammer again strikes the metal at approximately the center thereof. The cam O B thereupon causes the hammer to beat along the path 6, and the cam B C causes the path 6 c to be beaten. Thereupon the curve 0 C A causes the path 0 c a to be beaten, and the operation is then repeated continuously. For this operation it is essential that the angles of rotation of the leaf metal are identical with those of the respective cams. Another improvement is shown in Figs. 3 and 4. The more closely together the hammer-strokes fall the more uniformly rev olution.

the cam-disk through one angle or several angles formed by the radial paths, so that one path or several paths are missed. III thiscase, however, the total number of radial paths must be such that during the subse' quent rotation of the toothed disk those paths which were beaten are missed, so that the said beaten paths are not beaten again until after one revolution or several revolutions. In this manner radial paths 'at considerable distances apart are beaten in succession, notwithstanding that the paths are arranged closely together. In the example illustrated in Figs. 3 and 4 sixteen paths are indicated, two of which are to be missed at a time. The cams 0 1, 0 4, 0 7, 0 10 displace the leaf metal in approximately the directions of the paths 1, 4, 7, and 10, Fig. 3. The cam-disk can be so shaped that when one path has been beaten to the edge the beating is continued along the edge to approximately the end of the next path to be beaten. The numerals in Fig. 4 indicate approximately those parts of the cams which are in operation when the parts of the metal Indicated by similar numerals are being beaten. When the paths 1, 4, 7, and 10 have been beaten during a complete revolution of the cam-disk, the paths 13 16 3 6 are beaten during the next revolution of the disk, thereupon the paths 9 12 15 2, and then the paths 5 8 11 1 1, so that the first group of paths is not beaten again until the fourth In the machine shown in Figs. 5 and 6, a is the matrix, I) the die or hammer, and c the I carriage which carries the rotatable holder for the metal packet, shown as consisting of a disk or toothed ring (I, provided with a suitable aperture i to receive the packet of metal to be beaten. m is the cam-disk, which is longitudinally movable on the shaft Z and is operated by any suitable means, such as, for instance, the driving-pulley h. This disk can I angle.

be adjusted by means of a suitable device-for instance the spindle nin such a manner that the roller 0, mounted on the lever 19, is oper ated by a smaller or a larger circumferential part of the camdisk, so that shorter or longer paths are beaten. The lever p is continuously pulled toward the cam disk by a spring 1, or a weight and its oscillations are transmitted to the carriage c in the form of reciprocating motions by connecting-rods;

The toothed ring (1 and the leaf metal 15 must be rectilinearly moved during the beating of the radial paths and only rotated when the beating of one of the paths is finished. During the action of each separate cam the rotation must, therefore, be temporarily discontinued. This is effected by means of the following arrangement: The toothed wheels E and F are adapted to impart to the disk G a number of revolutions equal to the number of cams. Fixed to said disk G is a toothed segment H, adapted to gearwith the pinwheel J and intermittently rotate the latter. The disk G is also provided with a segment K of such size and shape that it is adapted to ass between the pins on the wheel J and ock the latter when the said pins are out of gear with the segment H. The intermittent rotation of the wheel J is transmitted to the wheels e and d by means of bevel-gear k and 11. Between the latter a longitudinally-movable shafts is arranged in order that the wheels remain in gear during the movements of the carriage c. The ratio of gear is so calculated that during each period of engagement of the segment H the toothed disk (1 is rotated through the angle contained by the beaten path and the path to be beaten.

The action of the machine is as follows: During the rotation of the cam-disk the roller 0 travels from the position shown in Fig. 5 to the position 0, and the carriage is thereby pulled toward the right by the lever 10, so that the center of the leaf metal is beaten. While the cam O A is pushing the carriage toward the left again, the teeth H remain out of gear and the locking-segment K is operative, so that the path 0 a is beaten. As soon as the cam A reaches the roller 0 the locking-segment K clears the pins and the teeth H rapidly rotate the disk (1 through the desired While this is being done, a cam A B can, if desired, be arranged to move the carriage in such a manner that the path a I), Fig. 1, is beaten. This operation is repeated with each cam.

The temporary independence of the carriage movement from the rotatory move ment of the leaf metal has in the method described with reference to Figs. 1 and 3 the particular advantage that the strokes on the radial paths can be delivered much more closely together than on the marginal paths. For this purpose it is necessary that the curves 0 A, O B, and so on, should extend through larger angles (considered from the center of the camdisk) than the curves A B, B C, and so on, and that the locking-segment K of the disk O should be proportionately longer than the toothed segment H. Withthis arrangement more time is required for the movement of the slide than for the rotation of the leaf-metal.

Any suitable form of beating-hammer b may be employed. A particularly desirable form of such hammer is shown in a divisional application, Serial No. 212,175, filed June 15, 1904.-

Having now particularly described and ascertained the 'nature of our said invention and in what manner the same is to be performed, we declare that what we claim is 1. In a machine for beating leaf metal, the combination with a matrix, and a suitable hammer, of a carriage having a packetholder rotatably mounted therein, means for reciprocating the carriage, means for rotating the packet-holder, and means for locking the packet-rotating devices during a portion of each reciprocation of the carriage.

2. In a machine for beating leaf metal, the combination with a matrix, and a suitable hammer, of a carriage having a packetholder rotatably mounted therein, a powershaft, a cam on said shaft, means connected with the carriage and adapted to be operated by said cam to reciprocate the carriage and packet-holder beneath the hammer, gearing adapted to transmit power from the shaft to the packet-holder to rotate the packetholder, and means for locking the packet-rotating devices during a portion of each reciprocation of the carriage.

3. In a machine for beating leaf metal, the combination with a matrix, and a suitable hammer, of a carriage having a packetholder rotatably mounted therein, a powershaft, means on said shaft for reciprocating the carriage and packet-holder beneath the hammer, a train of gearing adapted to connect said shaft and packet-holder to rotate the latter, and means for intermittingly disconnecting said shaft and train of gearing.

1. In a machine for beating leaf metal, the combination with a reciprocating carriage, of a drivingshaft, a cam mounted thereon, connections between the cam and carriage for reciprocating the latter, a rotatable packetholder mounted on the carriage, a toothed segment geared to the driving-shaft, a pinion adapted to be rotated by said segment, connections between the pinion and packetholder, and means for intermittently locking the pinion against rotation.

5. In a machine for beating leaf metal, the combination with a matrix, and a suitable hammer, of a carriage having a packetholder rotatably mounted therein, a powershaft, means actuated by said shaft for reciprocating the carriage, and gearing for rotating the packet-holder including a segmentgear adapted to be intermittently connected with the packet-holder.

6. In a machine for beating leaf metal, the combination with a carriage having a packetholder rotatably mounted therein, a powershaft, means actuated by said shaft for reciprocating the carriage, a train of gearing adapted to connect the shaft and packetholder to rotate the latter and including a shaft having telescoping sections, and means for holding the packet-holder against rotation during a portion of each reciprocation of the carriage.

7. In a machine for beating leaf metal, the combination with a matrix, and a hammer, of a carriage having a rotatable packetholder mounted therein, means for reciprocating the carriage beneath the hammer, and means for rotating the packet-holder while the carriage is moving in one direction and holding said packet-holder stationary while the carriage moves in the opposite direction.

8. In a machine for beating leaf metal, the combination with a matrix, and hammer, of a carriage having a packet-holder rotatably mounted therein, means for reciprocating the carriage beneath the hammer to cause the latter to beat the packet along lines radiating from the center of the packet, and means for rotating the packet-holder and causing the hammer to beat the packet on different radial lines during succeeding revolutions of the holder.

9. In a machine for beating leaf metal, the combination with a matrix and hammer, of

a carriage having a packet-holder rotatably mounted therein, means for reciprocating the carriage beneath the hammer to cause the latter to beat the packet along lines radiating from the center of the packet, and means for rotating the packet-holder, the parts being so related that the radial lines along which the hammer strikes the packet at each revolution of the packet-holder will not coincide with the corresponding lines of the preceding revolution.

10. In a machine for beating leaf metal, the combination with suitable beating devices, of a carriage provided with a rotatable holder for the metal packet, a power-shaft, a disk mounted on said shaft and having a series of radially-projecting arms, each of said arms having a plurality of cam-surfaces formed on its edges and adapted to engage means connected with the carriage as the shaft is rotated, means connected with the carriage and acting in opposition to said cams, means for locking the packet-holder against rotation While one of the camsurfaces of each arm is acting on the carriage, and means for rotating said holder While the succeeding cam-surface of said arm is in active position,

substantially as and for the purpose described. In testimony whereof we have hereunto set our hands in presence of two subscribing JAKOB HEINRICH. r HEINRICH DORSCH.

witnesses.

Witnesses MAURICE HILIEUFELD, EMIL PArENBRUoI-I. 

